Chapter 12. Battery charger module
12. Battery charger module
12.1. General information
The following systems are equipped with the battery charging module:
• PS100-WT+BC,
• PS100-PV+BC,
• PS100-H+BC.
Table 12.1. Charger module specifications
No. Name of the parameter Value
1 Nominal battery voltage 48 V dc
2 Nominal charging/discharging current 50 A dc
3 Charger topology transformerless
!!! ATTENTION. RISK OF ELECTRIC SHOCK !!!
Due to the use of transformerless topology of the charger, and thus the connection of the
negative pole of the battery to the DC circuit of the inverter, the battery terminals on the
batteries are life-threatening and health electrical voltage.
It is forbidden to touch the battery terminals because it may endanger you electric
shock!
Moreover:
1. It is forbidden to ground the battery poles. This may result in irreversible damage to the inverter
and will void the warranty.
2. Additional measuring circuits connected to the accumulator battery must be galvanically
separated from the power grid and the inverter's I / O. Otherwise, the system may malfunction
and even damage, which will not be covered by the warranty.
3. Charging and discharging of the attached battery takes place in two stages: initially it is work at
constant current, then work at constant voltage. The process of charging and discharging the
battery is shown in Fig. 12.1. It also indicates the parameters determining the maximum battery
charging and discharging current and voltage thresholds at their terminals.
PS100 – User manual 49
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